Whether you're a tech-savvy enthusiast or a first-time user, the RT-N66R is exceptional easy to use with CD-free, Quick Installation Setup (QIS) that lets you plug-n-surf right out of the box and connect PCs, smartphones, tablets, and other wireless devices quickly. Thanks to its refined interface tools, you get control like never before, letting you monitor signal strength, setup parental settings, and other useful functions in a robust yet intuitive way.